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<a name="boost_asio.reference.ip__basic_resolver.async_resolve.overload1"></a><a class="link" href="overload1.html" title="ip::basic_resolver::async_resolve (1 of 2 overloads)">ip::basic_resolver::async_resolve
          (1 of 2 overloads)</a>
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<p>
            Asynchronously perform forward resolution of a query to a list of entries.
          </p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span>
    <span class="keyword">typename</span> <a class="link" href="../../ResolveHandler.html" title="Resolve handler requirements">ResolveHandler</a><span class="special">&gt;</span>
<span class="keyword">void</span> <span class="identifier">async_resolve</span><span class="special">(</span>
    <span class="keyword">const</span> <span class="identifier">query</span> <span class="special">&amp;</span> <span class="identifier">q</span><span class="special">,</span>
    <span class="identifier">ResolveHandler</span> <span class="identifier">handler</span><span class="special">);</span>
</pre>
<p>
            This function is used to asynchronously resolve a query into a list of
            endpoint entries.
          </p>
<h6>
<a name="boost_asio.reference.ip__basic_resolver.async_resolve.overload1.h0"></a>
            <span><a name="boost_asio.reference.ip__basic_resolver.async_resolve.overload1.parameters"></a></span><a class="link" href="overload1.html#boost_asio.reference.ip__basic_resolver.async_resolve.overload1.parameters">Parameters</a>
          </h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl>
<dt><span class="term">q</span></dt>
<dd><p>
                  A query object that determines what endpoints will be returned.
                </p></dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
                  The handler to be called when the resolve operation completes.
                  Copies will be made of the handler as required. The function signature
                  of the handler must be:
</p>
<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">handler</span><span class="special">(</span>
  <span class="keyword">const</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span><span class="special">&amp;</span> <span class="identifier">error</span><span class="special">,</span> <span class="comment">// Result of operation.</span>
  <span class="identifier">resolver</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">iterator</span>             <span class="comment">// Forward-only iterator that can</span>
                                          <span class="comment">// be used to traverse the list</span>
                                          <span class="comment">// of endpoint entries.</span>
<span class="special">);</span>
</pre>
<p>
                  Regardless of whether the asynchronous operation completes immediately
                  or not, the handler will not be invoked from within this function.
                  Invocation of the handler will be performed in a manner equivalent
                  to using <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">io_service</span><span class="special">::</span><span class="identifier">post</span><span class="special">()</span></code>.
                </p>
</dd>
</dl>
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<h6>
<a name="boost_asio.reference.ip__basic_resolver.async_resolve.overload1.h1"></a>
            <span><a name="boost_asio.reference.ip__basic_resolver.async_resolve.overload1.remarks"></a></span><a class="link" href="overload1.html#boost_asio.reference.ip__basic_resolver.async_resolve.overload1.remarks">Remarks</a>
          </h6>
<p>
            A default constructed iterator represents the end of the list.
          </p>
<p>
            A successful resolve operation is guaranteed to pass at least one entry
            to the handler.
          </p>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2003-2012 Christopher M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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